This updates Workhorse to v8.39.0 to fix an issue with
`gitlab-zip-metadata`.

This relates to https://gitlab.com/gitlab-org/gitlab/-/issues/223806.

Full list of Workhorse changes:
https://gitlab.com/gitlab-org/gitlab-workhorse/-/blob/master/CHANGELOG

Copy the project manager to the settings page

See merge request gitlab-org/gitlab!38965

Use images in the Markdown page to show rendering

See merge request gitlab-org/gitlab!39099

Remove duplicated pipelines_created_counter method

Closes #235793

See merge request gitlab-org/gitlab!39347

Revert "Merge branch '230437-usage-data-optimize-counts-terraform_reports' into 'master'"

See merge request gitlab-org/gitlab!39342

Add inclusive language guidance to style guide

Closes technical-writing#119

See merge request gitlab-org/gitlab!38533

Add e2e spec for 2FA recovery via UI

Closes gitlab-org/quality/testcases#942

See merge request gitlab-org/gitlab!39076

Reduce displayed size of image

See merge request gitlab-org/gitlab!39346

Closes https://gitlab.com/gitlab-org/gitlab/-/issues/235793

The image is FAR larger than it needs to be, and is disruptive to
the flow of the page. Size it down.

Begin revising metrics page for flow

See merge request gitlab-org/gitlab!38972

The metrics page needs a complete rewrite. This commit starts the
process, though a great deal more needs to happen for it to be
usable.

Update docs to match field UI - "Service role"

See merge request gitlab-org/gitlab!39281

Fix FE GraphQL testing snippet

See merge request gitlab-org/gitlab!38911

Clarify rules for new branch pipelines

See merge request gitlab-org/gitlab!39230

This reverts merge request !37498

Add Project Mgmt metadata to development pages

See merge request gitlab-org/gitlab!39336

Refactor Jira importer code

See merge request gitlab-org/gitlab!39219

Add Milestone Token to use with Filtered Search Bar

See merge request gitlab-org/gitlab!39304

Rename project delete "adjourned" and "soft deleted" as "delayed"

Closes #223013

See merge request gitlab-org/gitlab!38921

Delayed project deletion is referred by different phrases
which this attempts to resolve:

Refer to "soft delete" as "delayed delete".
Refer to "adjourned" as "delayed".
Refer to "adjournment period" as "delay".

Convert glDeprecatedButton to glButton

Closes #219872

See merge request gitlab-org/gitlab!39146

Add missing curly bracket to i18n example

See merge request gitlab-org/gitlab!38970

Update deprecated environment dropdowns in dashboard

Closes #213717

See merge request gitlab-org/gitlab!39303

Optionally use new dry_run mode on CI Lint page

See merge request gitlab-org/gitlab!37828

This allows a pipeline creation to fully run while skipping
the persistence steps. In the end it returns a non-persisted
pipeline with all its errors and warnings.

This feature is useful to allow CI Lint to use the actual
pipeline creation and display all errors rather than using
only YamlProcessor.

- Enable link on the left nav bar
- Write tests

Warning messages for pipeline configurations

See merge request gitlab-org/gitlab!38734

Adds a warning message to the
ci lint view, pipeline view and
the run new pipeline view. Also
adds necessary text coverage.

Clarify the ID and IID details for variables

See merge request gitlab-org/gitlab!39277

Feat(Insights Charts): use skeleton chart loader

Closes #219742

See merge request gitlab-org/gitlab!37815

To add a nicer loading experience for the user
we use the general skeleton chart loader

Ref. https://gitlab.com/gitlab-org/gitlab/-/merge_requests/35012

Add MilestoneToken component to use within Filtered
Search Bar.

Swapping deprecated error tracking buttons

Closes #219823

See merge request gitlab-org/gitlab!39134

Clean up orphaned LFS file references during GC

Closes #223621

See merge request gitlab-org/gitlab!38813

Replace .com checks with app setting checks

See merge request gitlab-org/gitlab!39150